FORT BRAGG -- The brother of a man fatally stabbed after a San Francisco Giants game told a Bay Area television station that he, not his brother, had thrown a chair at the alleged assailant's group of friends, but that the suspected killer's claim of self-defense was not accurate.

The victim, 24-year-old Jonathan Denver, died Sept. 25 after a fight in an alley near Third and Harrison streets, about four blocks from AT&T Park. The fight occurred around 11:35 p.m., about 90 minutes after the end of a game between the Giants and the Los Angeles Dodgers; witnesses told San Francisco police that the incident started after the exchange of trash-talking between groups of Dodger and Giants fans.

Denver, whose father works as a security guard at Dodger Stadium in Los Angeles, was fatally stabbed by Lodi resident Michael Montgomery, 21, according to San Francisco police. Montgomery was arrested Sept. 26, but released the next day after San Francisco District Attorney George Gascon said his office needed more evidence before deciding whether to file charges.

Robert Preece Jr. told ABC7 News that the chair in question was "an aluminum beach chair," a gift from his father, but questioned why Montgomery was carrying a knife if he wasn't "looking for trouble."

Police are still asking for any witnesses to the incident to come forward.